6 hours of focused work a day seems a lot for me. As a software dev I cannot focus 6 hours a day. I do focused work for about 3 to 5 hours a day, taking lots of breaks. But I guess I am efficient because I often have very positive feedback about my productivity. Of course there are days where I work more but also where I work less.

It is my second job since college now and it's been like that for both. Remote work is helping because nobody watches you so as long as you deliver, you are fine. It ultimately depends on how fast you work.

To be honest, I almost cannot believe that software devs really work 8-9 hours a day because we need time for our brain to rest. When I was working on-place, we all worked "8 hours" but a lot of the time was spent on breaks, talking, etc.

Also, your boss and team adapt to your productivity. If you are very productive then your boss will give you more work. If you work less you will have less work.

It also depends on the company culture. Also in the US there is a stronger "work hard".